There are several things I would design differently if I had the option of designing them. Cell phones with switches sticking out on the outside of them would be one. On mine the volume switches are on the outer rim & I'm constantly pressing them when I pick up my cell phone. 
-
This Tweet is unavailable.
-
This Tweet is unavailable.
-
This Tweet is unavailable.
-
This Tweet is unavailable.
-
This Tweet is unavailable.
-
This Tweet is unavailable.
-
This Tweet is unavailable.
-
This Tweet is unavailable.
-
This Tweet is unavailable.
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.